Home / 870,861.96-1,201,788.54-488,889.54

Finding the Fourth Proportional to 870,861.96, 1,201,788.54 and 488,889.54

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Solution

The fourth proportional to 870,861.96, 1,201,788.54 and 488,889.54 is: 674,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,861.96 : 1,201,788.54 = 488,889.54 : x
  2. Step 2: Convert to fraction form
    870,861.96/1,201,788.54 = 488,889.54/x
  3. Step 3: Cross multiply
    870,861.96x = 1,201,788.54 × 488,889.54
  4. Step 4: Simplify right side
    870,861.96x = 587,541,846,497.87
  5. Step 5: Solve for x
    x = 587,541,846,497.87/870,861.96
  6. Step 6: Final answer
    x = 674,667.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.